Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Defence
  • /
  • Sonardyne International appoints Graham Brown as Managing Director

Defence Security

Sonardyne International appoints Graham Brown as Managing Director

Marine technology provider Sonardyne International Ltd. has announced Graham Brown as its new Managing Director.

Above: Leading marine technology provider Sonardyne International Ltd. has announced Graham Brown as its new Managing Director.
Courtesy Sonardyne International

Graham, who takes over the role from John Ramsden on 1st April, has served on Sonardyne International’s board from 2008, most recently as Sales and Marketing Director and Deputy Managing Director.

Advertisement
ODU RT

John, who has been Sonardyne International’s Managing Director since 2009, is staying within the Sonardyne family, taking the role of CEO of Sonardyne Group, the newly formed parent company of Sonardyne International and its sister companies; Chelsea Technologies, EIVA, Wavefront and 2G Robotics.

“This is an exciting time for Sonardyne International,” says Graham. “Looking beyond the current, uniquely challenging business climate, we’ll continue to grow organically, in terms of our people, our technology offering and the global markets which we support - while upholding the service and support that we’re renowned for. But we’re now part of a wider group of companies, with access to a considerably enlarged portfolio of products and services that complement our own seabed-to-shore systems. We expect this to deliver significant operational benefits for our customers across the global energy, ocean science, civil and defence markets.”

“Next year will be Sonardyne’s 50th year in business and I’m proud to have played a significant role in the success of the company over the last two decades,” says John. “As we look forward to celebrating that half century milestone with Graham at the helm, our collective sights are focussed on the direction we’re headed in at the start of our second half century. As CEO of Sonardyne Group, I’m excited at the prospect of working with Graham and his counterparts across our business to support those who measure, navigate, communicate or explore the world’s waters and oceans, safely, responsibly and more efficiently than ever before.”

Advertisement
ODU RT

Graham is an Electromechanical Engineer by background with a first-class degree and Ph.D. He is also a Chartered Engineer, a Fellow of the Institute of Directors (IoD), a Fellow of the Institute of Marine Engineering Science and Technology (IMarEST), and a member of the Society for Underwater Technology (SUT). He contributes to a number of industry groups such as the Southern Region Council of the Energy Industries Council (EIC).

 

Advertisement
FIA2026 animated banner
Digital Twin solutions set to deliver on UK-wide industrial transformation

Aerospace Defence Security

Digital Twin solutions set to deliver on UK-wide industrial transformation

24 June 2026

Digital Catapult has concluded its inaugural Digital Twin Adoption Accelerator which showcased cutting-edge digital twin solutions developed by nine small-to-medium sized enterprises (SMEs) from across the UK.

Rollestone Camp investment supports welfare of training troops

Defence

Rollestone Camp investment supports welfare of training troops

24 June 2026

The Defence Infrastructure Organisation (DIO), together with Landmarc and regional construction specialist Knights Brown Construction, has delivered a new £7 million kitchen facility at Rollestone Camp.

Marshall Land Systems appoints Stuart Evans as CFO

Defence

Marshall Land Systems appoints Stuart Evans as CFO

24 June 2026

Marshall Land Systems has appointed Stuart Evans as Chief Financial Officer, to lead the company’s global finance function.

Altus Group expands portfolio with SEHO partnership

Aerospace Defence

Altus Group expands portfolio with SEHO partnership

23 June 2026

Redditch based Altus Group has announced a new partnership with SEHO Systems GmbH, a German manufacturer specialising in wave and selective soldering systems, automation technology as well as THT inspection solutions.

Advertisement
ODU RT
Rotron Aerospace completes Project Brakestop SkyLance trial

Defence

Rotron Aerospace completes Project Brakestop SkyLance trial

23 June 2026

Rotron Aerospace Ltd has completed the successful trial of its SkyLance One Way Effect system under the UK Ministry of Defence's Project Brakestop: a Task Force Kindred funded project.

NP Aerospace to acquire Iten Defense

Defence

NP Aerospace to acquire Iten Defense

23 June 2026

NP Aerospace has signed a definitive agreement to acquire Iten Defense, a US based specialist provider of advanced defence protection solutions, from Edgewater Capital Partners and other minority shareholders.

Advertisement
ODU RT
Advertisement
FIA2026 animated banner